Spring顾问

什么是顾问？什么是通知？

顾问：从字面意思来讲，只找固定的几个可以使用

通知：所有的都可以用

举例说明通知

创建接口和实现类

package cn.happy.day11ProxyFactory;

/**
 * Created by Administrator on 2018/3/8.
 */
public interface ISomeService {
    public void doSome();
    public void doAny();
}
       



package cn.happy.day11ProxyFactory;

/**
 * Created by Administrator on 2018/3/8.
 */
public class SomeServiceImpl implements ISomeService {
    public void doSome() {
        System.out.println("do Something");
    }

    public void doAny() {
        System.out.println("do Any");
    }
}

　　

创建一个类

package cn.happy.day11ProxyFactory;

import org.springframework.aop.MethodBeforeAdvice;

import java.lang.reflect.Method;

/**
 * Created by Administrator on 2018/3/8.
 */
public class BeforeAdvice implements MethodBeforeAdvice {
    public void before(Method method, Object[] objects, Object o) throws Throwable {
        System.out.println("我是通知");
    }
}

　　

配置xml

  <!--目标类型-->
<bean id="service" class="cn.happy.day11ProxyFactory.SomeServiceImpl"></bean>

    <!--增强-->
    <bean id="beforeAdvice" class="cn.happy.day11ProxyFactory.BeforeAdvice"></bean>

    <!--代理工厂Bean-->
    <bean id="Proxy" class="org.springframework.aop.framework.ProxyFactoryBean">
        <!--引用目标类型-->
        <property name="target" ref="service"/>
        <property name="interceptorNames" value="beforeAdvice"/>
    </bean>

　　

测试结果

通知是针对所有的方法进行

顾问

只需修改xml文件配置即可，

<!--目标类型-->
<bean id="service" class="cn.happy.day11ProxyFactory.SomeServiceImpl"></bean>

    <!--增强-->
    <bean id="beforeAdvice" class="cn.happy.day11ProxyFactory.BeforeAdvice"></bean>

    <!--顾问-->
    <bean id="advisor" class="org.springframework.aop.support.NameMatchMethodPointcutAdvisor">
        <property name="advice" ref="beforeAdvice"></property>
        <!--value:设置方法名，多个方法之间用逗号分隔-->
        <property name="mappedNames" value="doSome"></property>
    </bean>

    <!--代理工厂Bean-->
    <bean id="Proxy" class="org.springframework.aop.framework.ProxyFactoryBean">
        <!--引用目标类型-->
        <property name="target" ref="service"/>
        <property name="interceptorNames" value="advisor"/> </bean>

　　

测试：